PIONEER GM-D505/XR/EW - Service Manual Immediate Download

PIONEER CORPORATION

4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan

PIONEER ELECTRONICS (USA) INC.

P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.

PIONEER EUROPE NV

Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium

PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936

C PIONEER CORPORATION 2003

K-ZZB. MAY 2003 Printed in Japan

ORDER NO.

CRT3076

5 CHANNEL POWER AMPLIFIER

GM-D505

XH/EW, XR/EW

Service

Manual

GM-D505/XH/EW

GM-D505 XH/ES, XR/ES

For details, refer to "Important symbols for good services".

234

GM-D505/XH/EW

[ Important symbols for good services ]

In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely.

When you find the procedures bearing any of the symbols, be sure to fulfill them:

2. Adjustments

To keep the original performances of the product, optimum adjustments or specification confirmation is indispensable.

In accordance with the procedures or instructions described in this manual, adjustments should be performed.

3. Cleaning

For optical pickups, tape-deck heads, lenses and mirrors used in projection monitors, and other parts requiring cleaning,

proper cleaning should be performed to restore their performances.

5. Lubricants, glues, and replacement parts

Appropriately applying grease or glue can maintain the product performances. But improper lubrication or applying

glue may lead to failures or troubles in the product. By following the instructions in this manual, be sure to apply the

prescribed grease or glue to proper portions by the appropriate amount.For replacement parts or tools, the prescribed

ones should be used.

4. Shipping mode and shipping screws

To protect the product from damages or failures that may be caused during transit, the shipping mode should be set or

the shipping screws should be installed before shipping out in accordance with this manual, if necessary.

1. Product safety

You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and

should keep the safety during servicing by following the safety instructions described in this manual.

SAFETY INFORMATION

CAUTION

This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer.

Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair

complex products such as those covered by this manual.

Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty.

If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so

and refer the repair to a qualified service technician.

GM-D505/XH/EW

CONTENTS

SAFETY INFORMATION............................................2

1. SPECIFICATIONS .......................................................3

2. EXPLODED VIEWS AND PARTS LIST ......................4

2.1 PACKING..............................................................4

2.2 EXTERIOR ............................................................6

3. SCHEMATIC DIAGRAM .............................................8

3.1 SCHEMATIC DIAGRAM(GUIDE PAGE) ..............8

4. PCB CONNECTION DIAGRAM................................16

4.1 AMP UNIT..........................................................16

4.2 NETWORK PCB .................................................20

4.3 CONNECTOR PCB .............................................20

5. ELECTRICAL PARTS LIST........................................21

6. ADJUSTMENT .........................................................25

7. GENERAL INFORMATION.......................................26

7.1 DIAGNOSIS .......................................................26

7.1.1 DISASSEMBLY .........................................26

7.1.2 CONNECTOR FUNCTION DESCRIPTION ......27

7.2 IC ........................................................................28

7.3 CIRCUIT DESCRIPTIONS ..................................29

8. OPERATIONS ...........................................................30

1. SPECIFICATIONS

Power source............................................................................................................ 14.4 V DC (10.8 -- 15.1 V allowable)

Backup current ................................................................................................................................................ 3 mA or less

Grounding system .......................................................................................................................................... Negative type

Current consumption .................................................................................................... 43.8 A (at continuous power, 4

)

Average current drawn* ...................................................................................................... 10.9 A (4

for five channels)

Fuse ........................................................................................................................................................................ 25 A

× 3

Dimensions ...................................................................................................................... 350 (W)

× 52 (H) × 268 (D) mm

Weight .................................................................................................................... 3.9 kg (Leads for wiring not included)

Maximum power output .................................................................................................... Channel A/B: 100 W

× 4 (4 )

Channel SUB: 300 W

× 1 (4 ) / 600 W × 1 (2 )

Continuous power output ............................................................................................ 65 W

× 4 (4 ) + 225 W × 1 (4 )

(56 W

× 4 (4 ) + 350 W × 1 (2 ))

(DIN45324, +B=14.4 V)

Load impedance .................................................................................................... 4

(Channel A/B: 4 -- 8 allowable)

(Channel SUB: 2 -- 8

allowable)

Frequency response .................................................................................. Channel A/B: 10 -- 40,000 Hz (+0 dB, 1 dB)

Channel SUB: 5 -- 240 Hz (+0.5 dB, 3 dB)

Signal-to-noise ratio ...................................................................................................................... 95 dB (IEC-A network)

Distortion .................................................................................................................... Channel A/B: 0.01% (10 W, 1 kHz)

Channel SUB: 0.03% (10 W, 120 Hz)

Low pass filter (Channel SUB) ........................................................................................ Cut off frequency: 40 -- 240 Hz

Cut off slope: 12 dB/oct

High pass filter (Channel A/B) ........................................................................................ Cut off frequency: 40 -- 240 Hz

Cut off slope: 12 dB/oct

Bass level control (Channel SUB) .............................................................................................................. 22 -- +12 dB

(125 mV -- 6.5 V)

Level/gain control (Channel A/B) ............................................................................................................ 200 mV -- 6.5 V

Maximum input level/impedance .......................................................................................................... RCA: 6.5 V/22 k

Note:

· Specifications and the design are subject to possible modification without notice due to improvements.

*Average current drawn

· The average current drawn is nearly the maximum current drawn by this unit when an audio signal is input. Use this value when

working out total current drawn by multiple power amplifiers.

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GM-D505/XH/EW

2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING

GM-D505/XH/EW

Part No.

GM-D505/XH/EW

GM-D505/XH/ES

Mark No. Description

GM-D505/XR/EW

GM-D505/XR/ES

1 Screw Assy

HEA0063

2 Screw

BYC40P180FZK

3 Polyethylene Bag

HEG0011

4 Polyethylene Bag

HEG0022

5 Carton

HHG0359

6 Contain Box

HHL0359

7 Protector

HHP0180

8-1 Owner's Manual

HRD0231

HRD0232

8-2 Owner's Manual

Not used

HRD0233

8-3 Warranty Card

HRY1157

Not used

9 Core

HTX0003

10 Polyethylene Bag

HEG0025

11 Lock Tie

HNV0025

- PACKING SECTION PARTS LIST

NOTE:

- Parts marked by "*" are generally unavailable because they are not in our Master Spare Parts List.

- Screws adjacent to

mark on the product are used for disassembly.

- For the applying amount of lubricants or glue, follow the instructions in this manual.

( In the case of no amount instructions, apply as you think it appropriate.)

- Owner's Manual

Part No.

Language

HRD0231

English, Spanish, German, French, Italian, Dutch

HRD0232

English, Spanish

HRD0233

Arabic, Portuguese